Leaf Petersen
b101a7d002
Change-Id: Ib33169c3e0ffc870915c189404074a1dea472546 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196548 Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Leaf Petersen <leafp@google.com>
54 lines
1.0 KiB
Dart
54 lines
1.0 KiB
Dart
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// @dart = 2.9
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import "package:expect/expect.dart";
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void testSimpleScope() {
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{
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var a = "Test";
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int b = 1;
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}
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{
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var c;
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int d;
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Expect.isNull(c);
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Expect.isNull(d);
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}
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}
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void testShadowingScope() {
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var a = "Test";
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{
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var a;
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Expect.isNull(a);
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a = "a";
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Expect.equals(a, "a");
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}
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Expect.equals(a, "Test");
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}
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int testShadowingAfterUse() {
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var a = 1;
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{
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var b = 2;
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var c = a; // Use of 'a' prior to its shadow declaration below.
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// ^
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// [analyzer] COMPILE_TIME_ERROR.REFERENCED_BEFORE_DECLARATION
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var d = b + c;
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// Shadow declaration of 'a'.
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var a = 5;
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// ^
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// [cfe] Can't declare 'a' because it was already used in this scope.
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return d + a;
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}
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}
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main() {
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testSimpleScope();
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testShadowingScope();
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testShadowingAfterUse();
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}
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